breathing

Sadie
So I'm 38+4 weeks and I'm dilated and my baby is already engaged I'm just waiting for the labor pretty much. Last week though I had a cold and I'm over it now but my nose still doesn't feel like I can completely breathe out of it and I feel like I can't catch my breath in my chest like something heavy is on top of me. Even when I lay down and I'm not walking or anything. I can be gasping for air just after talking. I thought once the baby gets lower this should go away? Yes I am small weigh 130 and baby weighs almost 8lbs. Should I contact my doctor or is this normal?